CN104567560B - The light composite material cartridge case of low gun pressure in being applicable to - Google Patents
The light composite material cartridge case of low gun pressure in being applicable to Download PDFInfo
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- CN104567560B CN104567560B CN201410706777.XA CN201410706777A CN104567560B CN 104567560 B CN104567560 B CN 104567560B CN 201410706777 A CN201410706777 A CN 201410706777A CN 104567560 B CN104567560 B CN 104567560B
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- cartridge case
- base layer
- carbon fiber
- applicable
- composite material
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Abstract
The present invention is directed to existing cartridge case Problems existing, the light composite material cartridge case of low gun pressure in a kind of being applicable to is provided, comprise base layer, enhancement layer and face coat, base layer take epoxy resin as matrix material, adopts gas die cast to form, wherein evenly infiltrate the SiO2 nano particle of 2%, and a small amount of curing agent, enhancement layer is carbon fiber, and carbon fiber is wrapped in base layer outside with the winding angle of 60O-63O, face coat is polytetrafluoroethylene (PTFE), is sprayed on enhancement layer outside; The invention enables cartridge case to be provided with high strength, lightweight, the features such as stable chemical performance, improve operating efficiency and firing frequency firing rate, decrease the consumption of metals resources.
Description
Technical field
The present invention relates to a kind of structure of cartridge case, specifically a kind of be applicable in the light composite material cartridge case of low gun pressure.
Background technology
Cartridge case is the basic support of bullet, and its Main Function comprises: inner loading gunpowder; Nozzle portion is fixing and support bullet; Outer shape plays a part to shoot location; Cartridge case can also protect cartridge chamber, reduces powder gas to the ablation of cartridge chamber, ensures to hold one's breath simultaneously, prevents powder gas from spraying from gun barrel afterbody.
In current major part, the cartridge case material of small-bore conventional weapon ammunition is all adopt the metal material such as copper, steel, and it is high that metal cartridge has reliability, is easy to store and have the features such as higher security; But along with the development of high cyclic rate weapon and wartime are to the demand taking more greatly bullet amount, metal cartridge exposes a lot of unavoidable problem, such as: (1) cartridge case weight is comparatively large, increase the weight of feeder running burden, weapon firing rate is limited; (2) will consume a large amount of metal material, wartime reclaims difficulty, causes the waste (3) of metals resources under equal transport and carrying capacity, transports and take the problems such as bullet amount is little;
Although the disappeared cartridge case developed at present and incendivity cartridge case have had certain progress, in cartridge chamber, leave residue so that issued bullet and well can not enter the problems such as thorax after ablation cartridge chamber, cartridge case incomplete combustion or burning after there is cartridge case burning.
In order to overcome above-mentioned problem, needing to select and a kind ofly can ensure that the cartridge case that can not disappear of the novel light material of ammunition working strength replaces the conventional metal cartridge used.
Summary of the invention
Object of the present invention is just to provide the light composite material cartridge case of low gun pressure in a kind of being applicable to, and solves existing cartridge case Problems existing.
The technical scheme that the present invention is adopted to achieve these goals is:
A kind of be applicable in the light composite material cartridge case of low gun pressure, it is characterized in that: comprise base layer, enhancement layer and face coat, described base layer take epoxy resin as matrix material, and adopt gas die cast to form, evenly infiltrating volume fraction in described epoxy resin is the SiO of 2%
2nano particle, and a small amount of curing agent; The oral area of described base layer is provided with projection, coordinates the groove on warhead-containing body, promotes to pull out elastic force when bullet is launched; Described enhancement layer is carbon fiber, and described carbon fiber is with 60-63 degree (60
o-63
o) winding angle be wrapped in base layer outside, described surface coating injection is outside at enhancement layer, and described face coat is polytetrafluoroethylene (PTFE);
Described epoxy resin is glycidol epoxy-type epoxy resin; Described curing agent is MPD;
Described carbon fiber is the T700SC12k carbon fiber of toray company;
The thickness of described face coat is 0.1-0.2mm;
The invention has the beneficial effects as follows: adopt this novel high-strength composite of carbon-fibre reinforced epoxy resin, make cartridge case be provided with high strength, lightweight, the features such as stable chemical performance; Carbon-fibre reinforced epoxy resin cartridge case replaces common metal cartridge case can alleviate the weight of cartridge case greatly, in identical transport with under carrying resilience energy power, transport and bullet-loading capacity can be improved, under the identical bullet number of loading, the workload of rammer and feeder reduces, the operating efficiency of rammer and feeder can be improved, improve the firing rate of high RF weapon.In artillery and in increase in small-bore conventional weapon and take bullet number, promote the survival probability that my army is equipped in wartime, decrease consumption and the waste of metals resources simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation in cross section of the present invention.
Fig. 2 is carbon fiber winding schematic diagram.
In figure 1, base layer; 2, enhancement layer; 3, face coat; 4, protruding; θ, winding angle.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described
A kind of be applicable in the light composite material cartridge case of low gun pressure, as shown in Figure 1, comprise base layer 1, enhancement layer 2 and face coat 3, described base layer 1 take epoxy resin as matrix material, adopt gas die cast to form, evenly infiltrating volume fraction in described epoxy resin is the SiO of 2%
2nano particle and a small amount of curing agent, the oral area of described base layer 1 is provided with protruding 4, coordinates the groove on bullet, improves to pull out elastic force when bullet is launched, and described enhancement layer 2 is carbon fiber, and as shown in Figure 2, described carbon fiber is with 60-63 degree (60
o-63
o) winding angle to be wrapped in base layer 1 outside, it is outside that described face coat 3 is sprayed on enhancement layer 2, and described face coat 3 is polytetrafluoroethylene (PTFE); The thickness of described face coat 3 is 0.1-0.2mm;
Preferred epoxy resin is glycidol epoxy-type epoxy resin;
The curing agent of preferred epoxy resin is MPD;
Preferred carbon fiber is the T700SC12k carbon fiber of toray company.
For the ease of long storage, base layer 1 of the present invention have employed this thermosetting resin of epoxy resin, and the composite of this advanced person has good environmental suitability, stable chemical performance, and thermal conductivity is lower than metallic copper; In numerous epoxy resin, glycidyl ester type epoxy resin (TDE-85) is the one that mechanical performance is comparatively superior, according to the lot of experiments that the relation between the current curing process to this epoxy resin, kinetic parameter, density and stretch modulus, modulus of compressibility, linear expansion coefficient is carried out, confirm that this kind of epoxy resin has good mechanical property as the material of base layer 1, the performance of enhancement layer 2 carbon fiber can be given full play to, can be made into and there is high elastic modulus, high tensile, the low-density composite of high compression-strength; Therefore, the present invention selects TDE-85 as the matrix material of base layer 1, preparation High Modulus Resin Matrix layer 1, MPD is as the curing agent of resin matrix layer 1, the T700SC12k carbon fiber of toray company, as enhancement layer material, has very high specific strength, specific modulus.
In order to strengthen the mechanical property of carbon fiber reinforced epoxy resin composite material, in base layer 1, evenly infiltrate the SiO of 2%
2nano particle, nano particle due to specific area large, surface-active is high, the modulus of epoxy resin is increased, thus properties of the present invention is improved.
Consider that mechanical property of the present invention has anisotropic feature, the compression of the powder gas pressure be subject to bottom the present invention and stretching action, when taking out shell, cartridge wall of the present invention is by the tensile force along axis of the present invention, for ensureing the effect can born powder gas pressure bottom the present invention and draw shell power, thickness bottom the present invention can be increased and rounding to increase the tensile force that can bear.
During casting, core adopts inflatable core, and gas mould is resistance to 200 ~ 300 degrees Celsius (resin melt temperature), resistance to hyperbar, is full of gases at high pressure as core when casting, and the shaping rear releasing gas of foundry goods takes out core.
Pulling out elastic force for improving the present invention when pellet injection, arranging protruding 4 at oral area of the present invention, corresponding warhead-containing body is arranged and protruding 4 corresponding grooves.
The phenomenon that elastic resistance is pulled out in the increase of rear cartridge case subsides thorax is launched, at the surface spraying polytetrafluoroethylene (PTFE) 0.1-0.2mm of enhancement layer 2 in order to solve bullet; Polytetrafluoroethylene (PTFE) friction characteristic is similar to ice, can play good antifriction function, and surface spraying polytetrafluoroethylene (PTFE) can reduce to take out shell resistance, prevents the present invention from being pulled off when taking out shell.
Claims (4)
1. one kind be applicable in the light composite material cartridge case of low gun pressure, it is characterized in that: comprise base layer, enhancement layer and face coat, described base layer take epoxy resin as matrix material, and adopt gas die cast to form, evenly infiltrating volume fraction in described epoxy resin is the SiO of 2%
2nano particle, and a small amount of curing agent; The oral area of described base layer is provided with projection, coordinates the groove on warhead-containing body, promotes to pull out elastic force when bullet is launched; Described enhancement layer is carbon fiber, and described carbon fiber is wrapped in base layer outside with the winding angle of 60-63 degree, and described surface coating injection is outside at enhancement layer, and described face coat adopts polytetrafluoroethylene (PTFE).
2. according to claim 1 be applicable in the light composite material cartridge case of low gun pressure, it is characterized in that: described epoxy resin adopts TDE-85 glycidol epoxy-type epoxy resin, and described curing agent adopts MPD.
3. according to claim 1 be applicable in the light composite material cartridge case of low gun pressure, it is characterized in that: described carbon fiber adopts the T700SC12k carbon fiber of toray company.
4. according to claim 1 be applicable in the light composite material cartridge case of low gun pressure, it is characterized in that: the thickness of described polytetrafluoroethylene spray is 0.1-0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410706777.XA CN104567560B (en) | 2014-12-01 | 2014-12-01 | The light composite material cartridge case of low gun pressure in being applicable to |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410706777.XA CN104567560B (en) | 2014-12-01 | 2014-12-01 | The light composite material cartridge case of low gun pressure in being applicable to |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104567560A CN104567560A (en) | 2015-04-29 |
| CN104567560B true CN104567560B (en) | 2016-04-20 |
Family
ID=53084191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410706777.XA Expired - Fee Related CN104567560B (en) | 2014-12-01 | 2014-12-01 | The light composite material cartridge case of low gun pressure in being applicable to |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104567560B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1013151B (en) * | 1985-04-01 | 1991-07-10 | 火药炸药国营公司 | Combustion or semi-combustible cartridge case composed of plural combustible paper band and manufacture process for it |
| CN2284375Y (en) * | 1996-04-09 | 1998-06-17 | 辽阳隆生塑胶有限公司 | Injection shell case series |
| US6038978A (en) * | 1998-02-11 | 2000-03-21 | Olin Corporation | Shotshell having a protective barrier layer |
| US8240252B2 (en) * | 2005-03-07 | 2012-08-14 | Nikica Maljkovic | Ammunition casing |
| CN101013019A (en) * | 2006-02-05 | 2007-08-08 | 董国宝 | Exuviated bullet with plastic holder |
| CN200952922Y (en) * | 2006-06-27 | 2007-09-26 | 肖忠渊 | Cartridge case made of carbon fiber |
| WO2010129781A1 (en) * | 2009-05-06 | 2010-11-11 | Vin Battaglia | Spiral case ammunition |
-
2014
- 2014-12-01 CN CN201410706777.XA patent/CN104567560B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104567560A (en) | 2015-04-29 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20161201 |